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Respiratory system shayne soto p.4 (disorders ((Asthma (Lung Cancer (1/3…
Respiratory system
shayne soto p.4
disorders
Asthma
Chronic inflamed hypersensitive bronchiole passages
Lung Cancer
1/3 of all cancer deaths in the US and is associated with smoking
Emphesyma
Alveoli enlarge as adjacent chamber break through causing chronic inflammation which promotes lung fibrosis
COPD
Labored of difficulty breathing becomes progressively more painful
Chronic Bronchitis
Mucosa becomes inflamed which also increases production and impairs ventilation
SIDS
Unexplained infant death which may be cause by neural respiratory control center
major functions
To take in oxygen from the atmosphere
To give out carbon dioxide and water into the atmosphere
To make sounds such as speech
Exhalation is breathing out
respiratory tract
Diaphragm
Left/Right Bronchus
Larynx
Oral Cavity
Nasal Cavity
Nostril
Pharynx
Trachea
Left/Right Lung
organs
Upper Respiratory Tract
Sinuses
Nose
Nasal Cavity
Pharynx
Lower Respiratory Tract
Bronchial Tree
Larynx
Trachea
Lungs
lung capacity
Total lung capacity
Sum of all volumes
Functional Residual capacity
residual volume+expiratory reserve volume
Expiratory reserve volume
Additional air forced out during maximum expiration
Residual volume
Amount of air left in aveoli after forrced expiration
Tidal Volume
Air moved in one respiration
Inspiratory reserve volume
Additional air taken in during maximal inhalation
Dead Space Volume
Air remaining in conducting zone
Inspiration Capacity
tidal volume+inspiratory reserve volume
Vital Capacity
inspiratory reserve volume+ tidal volume+expiratory reserve volume
Major Functions of Respiratory System
Gas exchanges between blood and external environment
Passageways to lungs purify,warm,and humidify the incoming air
Breathing Mechanism
Expiration
Flow of air out of the lungs
Inspiration
Flow of air into the lungs
Respiration
Entire process of exchanging gases between atmosphere and body cells
Pulmonary Ventilation
Movement of air in the Lungs
right vs. left
Right Primary Bronchus
Wider,shorter, and straighter than the left bronchus
Right Lung
2 lobes
Left Lung
3 lobes
Left Primary Bronchus
Longer,thinner, and crooked than the right bronchus
internal vs. external
External Respiration
occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air.
Internal Respiration
occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells